Do panel moderators do that too?
So why is that? The event itself is just as important. You are asking the participants to invest their valuable time with you. Nowadays, there is a substantial probability that someone is taking a video and/or tweeting about the event – saving the good, bad, and the ugly for posterity.
The point of all this practicing is so that you, as the panel moderator can be completely present to the conversation in the moment – making sure that the audience is getting great value from the audience. And as a result, you’ll look brilliant!